Levator labii superioris

  • The levator labii superioris (also levator labii superioris muscle, latin: musculus levator labii superioris) is a facial muscle located close to the mouth opening, which lifts the upper lip.

    The levator labii superioris originates from the infra-orbital margin of the maxilla. It inserts into the skin of the upper lip.

    Upon activation the levator labii superioris lifts the upper lip. Contractions of the muscle produce facial expression of worry, anxiety.

    The levator labii superioris is innervated by the buccal branch of the facial nerve (CN VII).